9u+u-8u=12

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Solution for 9u+u-8u=12 equation: 


Simplifying
9u + u + -8u = 12

Combine like terms: 9u + u = 10u
10u + -8u = 12

Combine like terms: 10u + -8u = 2u
2u = 12

Solving
2u = 12

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Divide each side by '2'.
u = 6

Simplifying
u = 6

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